US5113578A - Tool tip assembly for surface mount machine - Google Patents

Tool tip assembly for surface mount machine Download PDF

Info

Publication number
US5113578A
US5113578A US07/620,147 US62014790A US5113578A US 5113578 A US5113578 A US 5113578A US 62014790 A US62014790 A US 62014790A US 5113578 A US5113578 A US 5113578A
Authority
US
United States
Prior art keywords
tool tip
tool
housing
fixed
cylindrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/620,147
Inventor
Rodney P. Jackson
Mark E. Rossmeisl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STORAX Inc
Original Assignee
Newfrey LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Newfrey LLC filed Critical Newfrey LLC
Priority to US07/620,147 priority Critical patent/US5113578A/en
Assigned to EMHART INC., A CORP. OF DE reassignment EMHART INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JACKSON, RODNEY P., ROSSMEISL, MARK E.
Priority to EP91310720A priority patent/EP0488582A1/en
Priority to CA002056559A priority patent/CA2056559A1/en
Priority to JP3314477A priority patent/JPH04289079A/en
Priority to KR1019910021602A priority patent/KR920011312A/en
Application granted granted Critical
Publication of US5113578A publication Critical patent/US5113578A/en
Assigned to STORAX, INC. reassignment STORAX, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EMHART INC.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/0404—Pick-and-place heads or apparatus, e.g. with jaws
    • H05K13/0408—Incorporating a pick-up tool
    • H05K13/0409—Sucking devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/02—Feeding of components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53191—Means to apply vacuum directly to position or hold work part

Definitions

  • the present invention relates to machines for placing surface mount electronic components on circuit boards.
  • a tool tip is brought into engagement with an electronic component to be placed on a circuit board and a vacuum is applied to hold the component on the tool tip. Since the tool tip with the held component may be rapidly displaced from the pick up location to the deposit location, the component must be securely held and this means that larger components should be engaged by tool tips having larger areas so that a larger force can be applied.
  • This may be achieved with the use of a telescoping tool tip which can alternately present small and large area tool tips with the inner tool tip being displaceable between fixed stops to define advanced (pick-up) and retracted (inactive) positions. These stops have conventionally been defined within the tool housing. Repair or replacement required a disassembly of the tool housing and this was very time consuming.
  • FIG. 1 is a side cross-sectional view of a tool tip assembly for a machine for mounting surface mount electronic components in one of two alternate operating conditions
  • FIG. 2 is a similar view illustrating the alternate position.
  • the tool tip assembly has a housing 10 having an interior bore 12 for receiving an inner tool tip 14.
  • this inner tool tip 14 When this inner tool tip 14 is not in use, it will be pulled rearwardly by vacuum applied to a rearward air connection 15 until it stops against a fixed stop 16 which is part of a pin member 18.
  • the pin member 18 is axially received by a second coaxial housing bore 19 and is secured by a set screw 20.
  • the pin member 18 has an elongated flat 21 so that the location of the pin member and hence the stop can be seated against shoulder 22.
  • a molded elastomeric outer tool tip 30 having a component engaging surface 32 has a first bore 34 communicating with this surface and having a size sufficient to assure that large components will be picked up when the inner tool tip 14 is fully retracted against the stop 16 and vacuum is applied via a forward housing air connection 35.
  • a second enlarged coaxial bore 36 extending into the rear of the outer tool tip is located around the cylindrical end portion 38 of the housing and the outer tool tip is removably held in place by a pair of annular housing groves 40 which receive a pair of annular ridges 42 defined on the inner surface of this bore 36.
  • the inner surface of the outer tool tip flares outwardly 37 from the first bore 34 to the second bore 36 and an annular, rearwardly facing bumper 44 is defined at the rear end of the first bore.
  • This bumper 44 functions as the forward stop for the inner tool tip and also functions to effectively seal the outer tool tip when the inner tool tip has been pushed forwardly by air under pressure admitted through the rear air connection 15.
  • vacuum is applied via the forward connection 35 into the volume 48 surrounding the inner tool tip and through a passage 50 in the inner tool tip into an axial bore 52 which communicates with the end of the inner tool tip.
  • the inner and outer tool tips can be quickly replaced by simply pulling the outer tool tip off of the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Supply And Installment Of Electrical Components (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

The tool tip assembly has a fixed large tool tip and a movable telescoping tool tip which has a smaller area pick-up end. The telescoping tool tip is displaceable between fixed stops and the forward stop is defined by an annular bumper projecting rearwardly from the inner surface of the fixed tool tip proximate the forward bore portion. The telescoping tool tip can be quickly and conveniently accessed for repair, inspection or replacement by removing the molded elastomeric fixed large tool tip.

Description

The present invention relates to machines for placing surface mount electronic components on circuit boards.
In such machines, a tool tip is brought into engagement with an electronic component to be placed on a circuit board and a vacuum is applied to hold the component on the tool tip. Since the tool tip with the held component may be rapidly displaced from the pick up location to the deposit location, the component must be securely held and this means that larger components should be engaged by tool tips having larger areas so that a larger force can be applied. This may be achieved with the use of a telescoping tool tip which can alternately present small and large area tool tips with the inner tool tip being displaceable between fixed stops to define advanced (pick-up) and retracted (inactive) positions. These stops have conventionally been defined within the tool housing. Repair or replacement required a disassembly of the tool housing and this was very time consuming.
It is accordingly an object of the present invention to provide a telescoping tool tip which can be quickly accessed for repair or replacement.
Other objects and advantages of the present invention will become apparent from the following portion of this specification and from the accompanying drawings which illustrates in accordance with the mandate of the patent statutes a presently preferred embodiment incorporating the principles of the invention.
Referring the drawings:
FIG. 1 is a side cross-sectional view of a tool tip assembly for a machine for mounting surface mount electronic components in one of two alternate operating conditions, and
FIG. 2 is a similar view illustrating the alternate position.
The tool tip assembly has a housing 10 having an interior bore 12 for receiving an inner tool tip 14. When this inner tool tip 14 is not in use, it will be pulled rearwardly by vacuum applied to a rearward air connection 15 until it stops against a fixed stop 16 which is part of a pin member 18. The pin member 18 is axially received by a second coaxial housing bore 19 and is secured by a set screw 20. The pin member 18 has an elongated flat 21 so that the location of the pin member and hence the stop can be seated against shoulder 22.
A molded elastomeric outer tool tip 30 having a component engaging surface 32 has a first bore 34 communicating with this surface and having a size sufficient to assure that large components will be picked up when the inner tool tip 14 is fully retracted against the stop 16 and vacuum is applied via a forward housing air connection 35. A second enlarged coaxial bore 36 extending into the rear of the outer tool tip is located around the cylindrical end portion 38 of the housing and the outer tool tip is removably held in place by a pair of annular housing groves 40 which receive a pair of annular ridges 42 defined on the inner surface of this bore 36.
The inner surface of the outer tool tip flares outwardly 37 from the first bore 34 to the second bore 36 and an annular, rearwardly facing bumper 44 is defined at the rear end of the first bore. This bumper 44 functions as the forward stop for the inner tool tip and also functions to effectively seal the outer tool tip when the inner tool tip has been pushed forwardly by air under pressure admitted through the rear air connection 15. To pick up a smaller component on the advanced inner tool tip 14, vacuum is applied via the forward connection 35 into the volume 48 surrounding the inner tool tip and through a passage 50 in the inner tool tip into an axial bore 52 which communicates with the end of the inner tool tip.
The inner and outer tool tips can be quickly replaced by simply pulling the outer tool tip off of the housing.

Claims (2)

We claim:
1. A tool tip assembly for a machine for mounting electronic components comprising
a fixed tool having coaxial front and enlarged rear bores,
a housing having a cylindrical forward portion and a bore extending rearwardly from the front thereof,
means for removably securing said fixed tool on said cylindrical housing portion with said cylindrical forward housing portion in said enlarged rear tool bore,
a displaceable tool having a rear cylindrical portion slidably received within said housing bore and a reduced diameter cylindrical forward portion,
means for stopping the rearward displacement of said displaceable tool at a selected rear position and
said fixed tool including rearwardly projecting annular bumper means for engaging and stopping the forward displacement of said rear cylindrical housing portion of said displaceable tool at a selected forward position so that when said fixed tool is removed the displaceable tool can be removed from said housing.
2. A tool tip assembly for a machine for mounting electronic components according to claim 1, wherein said fixed tool is made of elastomeric material.
US07/620,147 1990-11-29 1990-11-29 Tool tip assembly for surface mount machine Expired - Fee Related US5113578A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US07/620,147 US5113578A (en) 1990-11-29 1990-11-29 Tool tip assembly for surface mount machine
EP91310720A EP0488582A1 (en) 1990-11-29 1991-11-20 Tool tip assembly for surface mount machine
CA002056559A CA2056559A1 (en) 1990-11-29 1991-11-28 Tool tip assembly for surface mount machine
JP3314477A JPH04289079A (en) 1990-11-29 1991-11-28 Forward end instrument of tool for use on surface mounting device
KR1019910021602A KR920011312A (en) 1990-11-29 1991-11-28 Feed Tip Assembly for Electronic Component Installation Machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/620,147 US5113578A (en) 1990-11-29 1990-11-29 Tool tip assembly for surface mount machine

Publications (1)

Publication Number Publication Date
US5113578A true US5113578A (en) 1992-05-19

Family

ID=24484782

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/620,147 Expired - Fee Related US5113578A (en) 1990-11-29 1990-11-29 Tool tip assembly for surface mount machine

Country Status (5)

Country Link
US (1) US5113578A (en)
EP (1) EP0488582A1 (en)
JP (1) JPH04289079A (en)
KR (1) KR920011312A (en)
CA (1) CA2056559A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194105A (en) * 1991-08-29 1993-03-16 American Telephone And Telegraph Company Placement and bonding technique for optical elements
US5201696A (en) * 1992-05-05 1993-04-13 Universal Instruments Corp. Apparatus for replacement of vacuum nozzles
US5374091A (en) * 1993-12-06 1994-12-20 Motorola, Inc. Vacuum gripper assembly for a robotic device
US6000122A (en) * 1995-09-13 1999-12-14 Matsushita Electric Industrial Co., Ltd. Component suction head for electronic component mounting machines
US6431624B1 (en) * 1999-08-21 2002-08-13 Man Roland Druckmaschinen Ag Suction gripper
US6736408B2 (en) * 2002-01-25 2004-05-18 Applied Materials Inc. Rotary vacuum-chuck with venturi formed at base of rotating shaft
US20090205569A1 (en) * 2008-02-14 2009-08-20 Illinois Tool Works Inc. Method and apparatus for placing substrate support components
US20090255426A1 (en) * 2008-02-14 2009-10-15 Illinois Tool Works Inc. Method and apparatus for placing substrate support components
US20120076625A1 (en) * 2010-09-28 2012-03-29 Ioline Corporation Rhinestone placement device
CN102843872A (en) * 2012-08-22 2012-12-26 广东益翔自动化科技有限公司 Mounting head structure of multifunctional special chip mounter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000052986A1 (en) * 1999-02-26 2000-09-08 Siemens Aktiengesellschaft Vacuum gripper for electric components

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703965A (en) * 1986-02-25 1987-11-03 Micro Component Technology, Inc. Integrated circuit placement device vacuum head
JPS639953A (en) * 1986-06-30 1988-01-16 Nec Corp Manufacture of semiconductor device
US4728135A (en) * 1983-12-20 1988-03-01 Matsushita Electric Industrial Co., Ltd. Component sucking and holding machine
US4762354A (en) * 1985-11-12 1988-08-09 Zevatech Ag Device for picking and transporting components
US4852247A (en) * 1987-06-17 1989-08-01 Emhart Industries, Inc. Suction pick-up apparatus for electrical or electronic components
US4887351A (en) * 1988-09-09 1989-12-19 Universal Instruments Corporation Pick and place nozzle with concentric grooves
US4917568A (en) * 1987-02-05 1990-04-17 Emhart Industries, Inc. Suction pick-up apparatus for electrical or electronic components

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8702617D0 (en) * 1987-02-05 1987-03-11 Dynapert Precima Ltd Handling electrical/electronic components

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728135A (en) * 1983-12-20 1988-03-01 Matsushita Electric Industrial Co., Ltd. Component sucking and holding machine
US4762354A (en) * 1985-11-12 1988-08-09 Zevatech Ag Device for picking and transporting components
US4703965A (en) * 1986-02-25 1987-11-03 Micro Component Technology, Inc. Integrated circuit placement device vacuum head
JPS639953A (en) * 1986-06-30 1988-01-16 Nec Corp Manufacture of semiconductor device
US4917568A (en) * 1987-02-05 1990-04-17 Emhart Industries, Inc. Suction pick-up apparatus for electrical or electronic components
US4852247A (en) * 1987-06-17 1989-08-01 Emhart Industries, Inc. Suction pick-up apparatus for electrical or electronic components
US4887351A (en) * 1988-09-09 1989-12-19 Universal Instruments Corporation Pick and place nozzle with concentric grooves

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194105A (en) * 1991-08-29 1993-03-16 American Telephone And Telegraph Company Placement and bonding technique for optical elements
US5201696A (en) * 1992-05-05 1993-04-13 Universal Instruments Corp. Apparatus for replacement of vacuum nozzles
US5374091A (en) * 1993-12-06 1994-12-20 Motorola, Inc. Vacuum gripper assembly for a robotic device
US6000122A (en) * 1995-09-13 1999-12-14 Matsushita Electric Industrial Co., Ltd. Component suction head for electronic component mounting machines
US6431624B1 (en) * 1999-08-21 2002-08-13 Man Roland Druckmaschinen Ag Suction gripper
US6736408B2 (en) * 2002-01-25 2004-05-18 Applied Materials Inc. Rotary vacuum-chuck with venturi formed at base of rotating shaft
US20090205569A1 (en) * 2008-02-14 2009-08-20 Illinois Tool Works Inc. Method and apparatus for placing substrate support components
US20090255426A1 (en) * 2008-02-14 2009-10-15 Illinois Tool Works Inc. Method and apparatus for placing substrate support components
US20090301324A1 (en) * 2008-02-14 2009-12-10 Illinois Tool Works Inc. Method and apparatus for placing substrate support components
US20120076625A1 (en) * 2010-09-28 2012-03-29 Ioline Corporation Rhinestone placement device
CN102843872A (en) * 2012-08-22 2012-12-26 广东益翔自动化科技有限公司 Mounting head structure of multifunctional special chip mounter

Also Published As

Publication number Publication date
EP0488582A1 (en) 1992-06-03
CA2056559A1 (en) 1992-05-30
KR920011312A (en) 1992-06-27
JPH04289079A (en) 1992-10-14

Similar Documents

Publication Publication Date Title
US5113578A (en) Tool tip assembly for surface mount machine
GB2118522A (en) A two part connection having a taper sleeve and a taper shank
US4653794A (en) Universal adjustable gripper with center push
EP1256735A3 (en) Hydraulic nut for mounting conical objects
SE9800448L (en) Contact device for high frequency cables
US4887351A (en) Pick and place nozzle with concentric grooves
CA2197573A1 (en) Needle retraction mechanisms
EP1239720A3 (en) Apparatus for assisting operator in performing manual operations in connection with component feeders
AU7608400A (en) Apparatus for swaging ferrules
SE9903848L (en) Chip separation tool
CN211660505U (en) Anti-mixing PIN detection device
GB2196893A (en) Ultrasonic welding apparatus
GB1419724A (en) Vacuum stroke cleaning implement
US4882655A (en) Device for locking an electronic equipment housing on a tray
US6123578A (en) Combination electrical/mechanical mounting connector
WO2002050959A3 (en) Coaxial connector fastening system
US5031817A (en) Electric soldering iron
WO2005067450A3 (en) Sensing component used to monitor material buildup and material erosion of consumables by optical emission
EP0877447A3 (en) Connector
US5252057A (en) Apparatus for ejecting moldings from an injection molding machine
CA1139620A (en) Vacuum desoldering tool and tool cleaner system
EP0361406A3 (en) Injection molding machine
US5457865A (en) Automatic boot mounting apparatus and method of automatically mounting a boot with the apparatus
JPS587386B2 (en) Kiyuin Sochi
KR0151690B1 (en) Shaft lip seal assembly tool for compressor

Legal Events

Date Code Title Description
AS Assignment

Owner name: EMHART INC., DRUMMOND PLAZA OFFICE PARK, 1423 KIRK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:JACKSON, RODNEY P.;ROSSMEISL, MARK E.;REEL/FRAME:005522/0932

Effective date: 19901128

AS Assignment

Owner name: STORAX, INC., FLORIDA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:EMHART INC.;REEL/FRAME:007534/0021

Effective date: 19950628

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Expired due to failure to pay maintenance fee

Effective date: 19960522

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362